首个高温超导带材发展战略研究报告： REBCO带材发展呼唤协同创新

Core Insights - The report released by the Chinese Academy of Sciences focuses on the strategic development of REBCO high-temperature superconducting tapes, marking the first international strategic research report on this topic, which aims to provide a clear roadmap for large-scale applications of high-temperature superconducting materials [1][2] Group 1: REBCO High-Temperature Superconducting Materials - Superconducting materials are recognized for their unique properties of zero electrical resistance and complete magnetic field expulsion, making them highly valuable in various fields such as energy, transportation, medical, and scientific research [1] - Traditional superconductors require extremely low temperatures (-269°C) for operation, leading to high cooling costs and reliance on scarce helium resources, which limits their widespread application [1] - The introduction of REBCO high-temperature superconductors, which operate above the liquid nitrogen temperature (-196°C), significantly reduces cooling costs and maintains excellent current-carrying capacity in high magnetic fields, laying the foundation for broader practical applications [1] Group 2: Challenges and Future Directions - Despite entering the early commercialization phase, the overall performance of REBCO materials has significant room for improvement, necessitating a systematic advancement in materials, processes, and applications [2] - The report identifies ten key scientific and technical issues that hinder the large-scale application of REBCO tapes, derived from comprehensive research on the entire development and application chain [2] - The report emphasizes the need for collaborative innovation to address performance bottlenecks and improve the balance of strength and toughness, structural conduction efficiency, and interlayer bonding in the composite structure of REBCO tapes [2][3]